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Reversible displacive transformation with continuous transition interface in a metastable beta titanium alloy
Qi, Lu; Chen, Chunjin; Duan, Huichao; He, Suyun; Hao, Yulin; Ye, Hengqiang; Yang, Rui; Du, Kui
2019-08-01
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume174Pages:217-226
AbstractSuper-elasticity and shape memory of materials are typically associated with reversible phase transformations. The reversible phase transformations and their governing factors thus have long been research interests of materials scientists and physicists. Here, a novel reversible omega transformation has been observed in a metastable beta-Ti alloy during tensile deformation with in situ aberration corrected transmission electron microscopy. We reveal that the reversible transformation is attributed to a trigonal crystal structure of the omega phase. Moreover, continuous transition interfaces with no interfacial defects are formed between the omega and beta phases, and they contribute essentially to the occurrence of the reverse transformation. This reversible transformation has great potential for developing super-elasticity and shape memory in materials. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordPhase transformation Interface structure Super-elasticity In situ transmission electron microscopy
Indexed BySCI
Language英语
WOS IDWOS:000474501300021
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80865
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Qi, Lu,Chen, Chunjin,Duan, Huichao,et al. Reversible displacive transformation with continuous transition interface in a metastable beta titanium alloy[J]. ACTA MATERIALIA,2019,174:217-226.
APA Qi, Lu.,Chen, Chunjin.,Duan, Huichao.,He, Suyun.,Hao, Yulin.,...&Du, Kui.(2019).Reversible displacive transformation with continuous transition interface in a metastable beta titanium alloy.ACTA MATERIALIA,174,217-226.
MLA Qi, Lu,et al."Reversible displacive transformation with continuous transition interface in a metastable beta titanium alloy".ACTA MATERIALIA 174(2019):217-226.
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